Processing

Please wait...

Settings

Settings

Goto Application

1. WO2002002355 - TYRE WITH IMPROVED BEAD STRUCTURE

Publication Number WO/2002/002355
Publication Date 10.01.2002
International Application No. PCT/EP2001/007125
International Filing Date 22.06.2001
Chapter 2 Demand Filed 25.01.2002
IPC
B60C 15/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
B60C 15/024 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
02Seating or securing beads on rims
024Bead contour, e.g. lips, grooves, or ribs
B60C 15/06 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
06Flipper strips, fillers, or chafing strips
CPC
B60C 15/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
B60C 15/0027
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
0009features of the carcass terminal portion
0027with low ply turn-up, i.e. folded around the bead core and terminating at the bead core
B60C 15/024
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
02Seating or securing beads on rims
024Bead contour, e.g. lips, grooves, or ribs
B60C 15/0247
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
02Seating or securing beads on rims
024Bead contour, e.g. lips, grooves, or ribs
0247with reverse bead seat inclination, i.e. the axially inner diameter of the bead seat is bigger than the axially outer diameter thereof
B60C 15/06
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
06Flipper strips, fillers, or chafing strips ; and reinforcing layers for the construction of the bead
B60C 15/0607
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15Tyre beads, e.g. ply turn-up or overlap
06Flipper strips, fillers, or chafing strips ; and reinforcing layers for the construction of the bead
0603characterised by features of the bead filler or apex
0607comprising several parts, e.g. made of different rubbers
Applicants
  • SOCIETE DE TECHNOLOGIE MICHELIN [FR]/[FR] (AE, AL, AM, AT, AU, AZ, BA, BB, BE, BG, BR, BY, CH, CN, CR, CU, CY, CZ, DE, DK, DM, EE, ES, FI, FR, GB, GD, GE, GH, GM, GR, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, MN, MW, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW)
  • MICHELIN RECHERCHE ET TECHNIQUE S.A. [CH]/[CH] (AllExceptUS)
  • BORDOZ, Francis [FR]/[FR] (UsOnly)
  • PATTERSON, Forrest [US]/[FR] (UsOnly)
Inventors
  • BORDOZ, Francis
  • PATTERSON, Forrest
Agents
  • DIERNAZ, Christian
Priority Data
00/0864903.07.2000FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) TYRE WITH IMPROVED BEAD STRUCTURE
(FR) PNEUMATIQUE AVEC DES BOURRELETS DE STRUCTURE AMELIOREE
Abstract
(EN) The invention concerns a tyre (1) with radial carcass reinforcement (13) comprising, viewed in meridian cross-section, two beads (12) with generatrices sloping outwards, the turn-up (130) of said reinforcement (13) being formed by the lateral (30) and radially internal (32) sides of a profiled section (3) of rubber mixture with high Shore hardness in the form of a wedge, and having located axially outside a straight line P2 perpendicular to the axis of rotation and passing through the centre of gravity of the anchoring element (14) and axially inside and radially outside the straight line P1 passing through said centre of gravity and forming with the axis of rotation an angle ranging between 30° and 60°, at least one of the profiled sections (6, 7) of rubber mixtures, between the carcass reinforcement (13) and its turn-up (130) and radially above the annular element (14) and the wedge-shaped profiled section (3), having a Shore hardness at least equal to the hardness of the rubber mixture forming said profiled section (3), and the ratio e1/e2, of the thickness e1 between the carcass reinforcement turn-up (130) and the annular anchoring element (14) over the thickness e2 between the carcass reinforcement turn-up (130) and the bead outer wall, measured on the straight line P1 verifies the relationship 0.05 $m(F) e1/e2 $m(F) 1.0.
(FR) Pneumatique (1) à armature de carcasse radiale (13) comprenant, vu en section méridienne, duex bourrelets (12) avec génératrices inclinées vers l'extérieur, le retournement (130) de ladite armature (13) étant formé par les côtés latéral (30) et radialement interne (32) d'un profilé (3) de mélange caoutchouteux de dureté Shore A élevée sous forme de coin, et possédant une extrémité située d'une part axialement à l'extérieur d'une droite P2 perpendiculaire à l'axe de rotation et passant par le centre de gravité de l'élément annulare d'ancrage (14)et d'autre part axialement à l'intérieur et radialement à l'extérieur de la droite P1 passant par ledit centre de gravité et faisant avec l'axe de rotation un angle compris entre 30° et 60°, au moins l'un des profilés (6, 7) de mélanges caoutchouteux, entre l'armature de carcasse (13) et son retournement (130) et radialement au-dessus de 1 élément annulaire (14) et du profilé (3) en forme de coin, présentant une dureté Shore A au moins égale à la dureté du mélange caoutchouteux formant ledit profilé (3), et le rapport e1/e2, de l'épaisseur e1 entre le retournement (130) d'armature de carcasse et l'élément annulaire d'ancrage (14) sur l'épaisseur e2 entre le retournement (130) d'armature de carcasse et la paroi extérieure du bourrelet, mesurée sur la droite P1, satisfaisant à la relation 0,05$m(F)e1/e2$m(F)1,0.
Latest bibliographic data on file with the International Bureau